75969217 has 4 divisors (see below), whose sum is σ = 77214676. Its totient is φ = 74723760.

The previous prime is 75969203. The next prime is 75969227. The reversal of 75969217 is 71296957.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71296957 = 59 ⋅1208423.

It can be written as a sum of positive squares in 2 ways, for example, as 15689521 + 60279696 = 3961^2 + 7764^2 .

It is a cyclic number.

It is not a de Polignac number, because 75969217 - 2²³ = 67580609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75969227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622638 + ... + 622759.

It is an arithmetic number, because the mean of its divisors is an integer number (19303669).

Almost surely, 2^75969217 is an apocalyptic number.

It is an amenable number.

75969217 is a deficient number, since it is larger than the sum of its proper divisors (1245459).

75969217 is a wasteful number, since it uses less digits than its factorization.

75969217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245458.

The product of its digits is 238140, while the sum is 46.

The square root of 75969217 is about 8716.0321821343. The cubic root of 75969217 is about 423.5251615106.

The spelling of 75969217 in words is "seventy-five million, nine hundred sixty-nine thousand, two hundred seventeen".